The lightning protection foundation is connected by threads, and it still needs to be welded with st

According to Article 6 of the article in GB50057-2010, if there is a stirrup connection in the component or a network of steel bars, the stirrups and the steel bar, and the steel bar and the steel bar shall be connected by the binding method, screws, butt welding or lap welding of civil construction. A single steel bar, round steel bar or external pre-embedded connecting plate, line and steel bar in the component should be welded or connected by a clamp fastened by bolts. The components must be connected to each other as electrical paths.

Welding: Welding, also known as "welding" or welding, neuterization, is a processing technology and connection method in which two or more materials (of the same or different species) are heated or pressurized, or both are used together to produce atomic bonding between two workpieces. Welding has a wide range of applications and can be used for both metals and non-metals.

Fusion welding is a method of heating the workpiece interface to a molten state during the welding process and completing the welding without pressure. During fusion welding, the heat source quickly heats and melts the interface of the two workpieces to be welded to form a molten pool. The molten pool moves forward with the heat source, and after cooling, a continuous weld is formed, which connects the two workpieces into one.

Thread connection needs to be welded, if it is butt welding, it can not be welded.

But the 2010 version of the new lightning protection specification.

It is possible to avoid welding, but it is highly recommended that you weld in order to ensure a good electrical penetration.

It is necessary that the length of the round steel of 12 should not be less than 12cm

Unless the steel bar is butt welded and does not need to be crossed, such as bundling and wire jointing, the steel bar at the junction should be welded and spanned with steel bar.

Jump start (English: jump start; Also known as jumping, borrowing, it is a method of connecting another vehicle's battery or other external power source to a vehicle with a depleted starting battery to start the vehicle. As soon as the vehicle is started, its normal charging system can be charged, i.e. the auxiliary power supply can be removed.

As long as the vehicle's charging system is normal, a normal vehicle will resume charging the battery.

The vehicle battery may be accidentally drained due to the use of headlights or ignition switches when the engine is not running, etc., and the driver can carry a jumper cable in case of this unexpected situation. The safety procedures for connecting and disconnecting cables should already be written out in the vehicle manual.

In the past, especially in cold climates, two batteries connected in series were used for hitch-up power to supply 24 volts to a 12-volt starter motor.

Large trucks. Excavation equipment or vehicles with diesel engines may use a 24-volt electrical system. They usually have a 24V power supply using two 12V car batteries connected in series: so it is possible to start the vehicle with only one of the two batteries using a 12V electrical system.

Older cars may use a 6-volt electrical system, or they may have a positive terminal of the battery.

Attached to the chassis. Therefore, it cannot start a 12-volt, negatively grounded vehicle with electricity.

Hybrid vehicles may be very small 12-volt battery systems that are not suitable for supplying conventional vehicles with the large amount of current required to start on an electric basis. However, thanks to hybrid cars.

The 12-volt system only needs to start the vehicle's control system, and the very small portable battery can successfully start a hybrid car that has accidentally discharged its 12-volt system; It is also unlikely that the main propulsion battery will be depleted.

Jumpers are often used as electrician grounding protection areas. Due to the high voltage and high current of lightning, in terms of lightning protection of buildings, the reinforcement process in reinforced concrete can be implemented as a standard process.

Lightning protection grounding rebar wire connection should not be welded jumper pro! Hello, I am glad to answer for you<> whether to weld the lightning protection grounding rebar wire connection needs to do the leap welding, and use a round steel with a diameter of 10mm. Because the wire connection cannot meet the requirements of the resistance value.

When using the reinforcement mesh in the reinforced concrete component as the lightning protection device, the following conditions should be met through the electrical path: (1) The connection of the main steel bar in the length direction of the component adopts welding (lap welding or butt welding) or the iron wire stupid source binding and large lap joint usually used in civil construction, and the lap length is not less than 20d, and d is the diameter of the steel bar. (2) At the intersection of the horizontal member and the vertical member, there is a main steel bar welded to each other or connected by a clamp welded with a jumper wire or fastened with bolts, or there are no less than two main steel bars connected with each other by the wire binding method usually adopted.

Generally, the steel bar with straight reinforcement greater than 10; Without soldering the lower lead, it is impossible to form a lightning rod. In the building foundation beams and columns as the lightning protection grounding body, the threaded steel bar of the down wire, the connection of the steel bar does not need to be crossed unless the butt welding, where the wire is bundled, the joint connected by the wire mouth should be used as a crossover with 10 galvanized round steel. The welding multiple is 6b, the welding is firm, and the weld is full.

Lightning protection grounding is divided into two concepts, one is lightning protection, to prevent damage caused by lightning strikes; The second is electrostatic grounding to prevent static electricity from harming. The grounding device is a general term for the grounding body and grounding wire, and its function is to direct the lightning current into the ground, and the protection of the lightning protection system is largely related to this. The characteristics of the grounding project itself determine the influence of the surrounding environment on the engineering effect, and it is not feasible to design the grounding project without the specific conditions of the project location.

It is required to have a systematic grounding theory to guide the engineering practice. The quality of the design depends on the consideration of many factors of the local soil environment. Factors such as soil resistivity, soil structure, water content and constructable area determine the shape, size and selection of process materials of the grounding grid.

When designing the artificial grounding body, it should be accurately designed according to the geological conditions such as soil resistivity and soil layer distribution where the ground grid is located. Hope mine can help you <>

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Summary. Kiss! Hello, happy to answer your <>

The connection point of the sleeve of the lightning protection grounding steel bar does not need to be crossed welding, please refer to the provisions of GB50057-2010 on the crossover of steel bars: the binding method, screws, butt welding or lap welding connection of civil construction are adopted, and the single steel bar, round steel bar or external pre-embedded connecting plate, line and steel bar in the component should be welded or connected by a clamp fastened by bolts. The components must be connected to each other as electrical paths.

Superiority: Rib stripping and rolling straight thread connection of steel bar is a new type of steel bar connection sleeve technology, its structural principle is to strip off a part of the longitudinal rib and transverse rib at the end of the steel bar to be connected by cutting method, and then directly roll into an ordinary straight thread, and then connect it with a special straight thread steel bar connecting sleeve to form a connection of steel bar. Good mechanical properties, safe and reliable connection: because the end of the steel bar is rolled and formed, the steel bar material is treated by cold work, and the strength of the thread and the steel bar are improved, which makes up for the impact of the bottom diameter of the thread being less than the diameter of the base circle of the base metal of the steel bar on the weakening of the strength, so that the joint strength of the connection is higher than the strength of the base metal, and the base metal can give full play to its strength and ductility.

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Whether the connection point of the lightning protection grounding steel sleeve should be crossed welded.

Kiss! Hello, happy to answer your <>

The connection point of the lightning protection grounding steel sleeve does not need to be crossed welding, please refer to the provisions of GB50057-2010 on the crossover of steel bars: the binding method, screws, butt welding or lap welding connection of civil construction are adopted, and the single steel bar, round steel bar or the embedded connecting plate, line and component steel bar should be welded or connected by a clamp fastened by which bolts. The components must be connected to each other as electrical paths.

Superiority: Rib stripping and rolling straight thread connection of steel bar is a new type of steel bar connection sleeve technology, its structural principle is to strip off a part of the longitudinal rib and transverse rib at the end of the steel bar to be connected by cutting method, and then directly roll into an ordinary straight thread, and then connect it with a special straight thread steel bar connecting sleeve to form a connection of steel bar. Good mechanical properties, safe and reliable connection: because the end of the steel bar is rolled and formed, the steel bar material is treated by cold work, and the strength of the thread and the steel bar are improved, which makes up for the impact of the bottom diameter of the thread being less than the diameter of the base circle of the base metal of the steel bar on the weakening of the strength, so that the joint strength of the connection is higher than the strength of the base metal, and the base metal can give full play to its strength and ductility.

Hope mine can help you <>

Do you have any other questions?

Whether the connection point of the lightning protection grounding steel sleeve should be crossed welded.

You don't need it.

You can take a look.

The atlas is there.

I can find it in the atlas without jumping.

Dear this oh GB50169-2006

Do you want to do crossover welding at the connection point of the lightning protection grounding steel sleeve? Hello, glad to answer your <> no. The mechanical connection of the steel bar is mainly through the wire of the steel bar, and then the two steel bars are connected together with a sleeve.

After connecting with a sleeve, there is no need to weld the crossover reinforcement. When to use mechanical connection is mainly considered from several aspects: 1. The design requirements are mechanically connected (the design requirements should be complied with); 2. When the project uses HRB400 or HRB500 steel bars (because of the poor weldability of steel bars); 3. When the reinforcement joints are in the same section, or when the reinforcement joints of the same section exceed 50% (the mechanical connection can reach the same strength of the reinforcement); 4. The spacing of steel bars is too small (mechanical connection is more space-saving than welding); 5. When there are special construction requirements (such as underground diaphragm wall); 6. When the capacitance of the construction site is insufficient (mechanical connection saves power); 7. When there are light and noise burning blind studio sound pollution requirements at the construction site (no noise and no flash in the mechanical connection); 8. When the construction progress is required to be fast (mechanical connections are prefabricated in advance and assembled on site).

Extended material: I hope mine can help you <>

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The threaded connection of the steel bar collapses for the lightning protection down wire and needs to be welded. The steel bars used for lightning protection to lead down the normal line are threaded connections and need to be lashed or welded (surfacing welding); Generally, the steel bar with straight reinforcement greater than 10; Without soldering the lower lead, it is not possible to form a lightning rod.

Dear, hello, I am glad to answer for you: whether the steel bar threaded connection as a lightning protection down wire is still welded with a steel digging silver bar threaded connection as a lightning protection lead down line needs to be welded. The steel bars used as lightning protection down wires are threaded connections and need to be tied or welded (surfacing welding); Generally, it is directly judged that the reinforcement of Wuyan tendon is greater than 10; Without soldering the lower lead, it is impossible to form a lightning rod.

Rebar refers to steel for reinforced concrete and prestressed reinforced concrete, which has a circular cross-section and sometimes a square with rounded corners. Including round steel bars, ribbed steel bars, and torsion steel bars.